Wrench.



ozzzmdhm y Mfg/m @13 www@ UNITED STATES PATENT OFFICE.

OLLIE MLLINS, OF TERRE HAUTE, INDIANA, ASSIGNOR F ONE-HALF T0 MILTON T.

HUTTS, OIE- TERRE HAUTE, INDIANA.

d WRENCH.

Specification of Letters Patent.

PatentedJan. 6, 1914.

Application filed August 12, 1913. Serial No. 784,328. i

in view is -to provide a wrench of cheap and simple construction,consisting of few easily assembled parts, capable of fine adjustment andwhich may he readily applied to a nut to operate upon the nut. l

A further object of the invention is the provision of a wrenchcomprising a station ary jaw the shank of the said stationary jaw, themovable j aw being provided with a pivoted Q0 member which carries ascrew that co-acts with the threads of the shank of the movable jaw, andthe said screw carrying member being at all times under the tension of a7' spring to force the said screw into engagement with the teeth of theshank, and to further provide means whereby7 the said 'screw carryingmembers may be swung. out of engagement with the threads to permit ofthe quick adjustment of the wrench as well as to lock the said elementupon the movable jaw to retain the screw in operative engagement withthe threads of the shank.

With the ahoverecited objects in view, and others which will appear asthe nature 3.5 of the invention is more fully understood,A

the improvement resides in the construction, combination and arrangementof parts set forth in the following speciicatmn and falling within thescope of the appended claim.

n the drawing: Figure 1 is a View of a wrench constructed in accordancewith the present invention, the dotted lines illustrating the positionofthe screw carrying mem ber when the latch has been operated topermit'of the same being swung to bring its screw out of engagement withthe threads of the shank of the wrench, Fig. 2 is a cen trallongitudinal sectional view taken through the movable jaw and themembers carried by the said movable jaw, Fig. 3ds al perspective view ofthe screw carrying member, and Fig. 4 is a similar view oit the latch.

In the drawing, the numeral l designates the wrench in its entirety. Thewrench includes a stationary jaw 2 which is provided having a movablejaw slidable upon with a reduced angular shank 8, and the said shankhas, what may be termed, its upper face provided with transverselyarranged teeth 4, and is also provided with a removable handle 5.

The numeral 6 designates the movable jaw. This jaw is formed with alongitudinally extending passage 7 for the reception of the shank.3, thejaw being further provided adjacent its engaging face and above itspassage 7 with a depressed portion or pocket 8, and the rear portion ofthe jaw, to' the rear of its pocketand at the upper portion of said ljawterminates in an angular wall 9, the said wall being parallel with theengaging face of the jaw, and so dispdsed vertically of the jaw when thewrench is in the position illustrated in the' figures of the? drawing.The wall 9 terminates with the ,longitudinally extending side walls 1()formed by the passage 7, and the said side walls have their endsprojected and bridged,

as at 11. The side walls are disposed beow the upper walls of thepassage, so that the angular wall 9 partially enters the said passage,and the bridge l1 is slotted in a plane with the inner surfaces of theside walls to provide a continuation of the passage. The end of the jawprovided with the bridge 11 is formed, at the lower wall of said movablejaw, with a transversely arranged notch l2.

The angular wall 9 is centrally formed with a slot 13, and the pocket 8is adapted to receive a helical pressure spring 14, which is adapted tohave one of its ends enter a groove provided upon an annular head 15which is provided upon one end of an arched member 16, and the saidarched member is connected with a tongue 17 provided upon one end of ascrew carrying member 18. The tongue 17 is centrally formed upon one 'ofthe ends of the said member 1S and is secured within. the notchthroughthe medium of a pivot. 19 which is arranged transversely of the jaw 6.

The end of the wrench has its walls which are provided upon the oppositesides of the tongue 17 and which may be designated hy the numerals 20,normally contacting with thc angular wall 9 of the jaw G, andthc'saidmember is provided with a transverse opening within which is mounted forrotation a. worm or scew 21, and the said screw, through thc medium ofthe spring 14, is normally forced into engagement with the teeth 8Ol i-versely anfang-ed pm 2S Whloh paseos hough BEST AVAILABLE copy The eeis ofuroate at lts outel" end, and one of to The numeral 25 designatesthe look o1' laoh of the member-18. The latch comprises a ongue 26, andsides 27. The "cof le zzdaped to be received Within the buoae tion ofthe tail so ves to pe'mt of longii'udna movement of the seid Caidupon heThe sides 27 ore povided a consthe elongated slot 24 and which secures;toh for longitudinal movement upon tail Vof theorew carrying memoe. armsare )'o'nmed as .owel ends/wh; jeetngngers 29, and the said ngers, Wn@ lthe latch is moved to lock the member 18 uponihe movable jaw, areecevedewthn the notched portions l2- provide. upon the sides of themovable jew. From. the above description when, in con` f, necton withthe dawoge the elmpiciy o 'the deve es Weil as the advantages thereof a.movebiega v ylovlded ,Jole movement upon the shook, sec eoff notched, sobeing pocket, a he. cui W,

Ioed. 'xember Seemed to i 1 t 'l a v i L n Y ,members formed. by @bhebufoolon le Yo movable 3m: and hevmg headed member vided Wlth an eongaedslot 2e. engaged by @fue spring, smo. membe' moind-

